CLIR · Insider Trading

ClearSign Technologies Corporation Common Stock (DE)

Every open-market purchase and sale reported by CLIR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
4
code P
Sales
0
code S
Reporting Insiders
4
current holders
CLIR — Recent Form 4 Transactions (latest 2026-10-02)
FiledInsiderRole TypeSharesValue
2026-10-02 Larry Michael Saddler Director A +2,275 deriv. —
2026-10-02 Lou Basenese Director A +3,766 deriv. —
2026-10-02 Gil Todd Silva Director A +7,991 deriv. —
2026-10-02 Anthony Digiandomenico Director A +3,766 deriv. —
2026-07-24 John M Pasquesi 10%+ Owner Buy +500,000 +$1.77M
2026-07-02 Gil Todd Silva Director A +8,682 deriv. —
2026-07-02 Lou Basenese Director A +4,595 deriv. —
2026-07-02 Anthony Digiandomenico Director A +4,595 deriv. —
2026-04-27 Colin James Deller Chief Executive Officer MIXED +3,500 +$19.66K
2026-04-27 Gil Todd Silva Director Buy +2,000 +$10.57K
2026-04-02 Lou Basenese Director A +3,024 deriv. —
2026-04-02 Anthony Digiandomenico Director A +3,024 deriv. —
2026-04-02 Gil Todd Silva Director A +6,464 deriv. —
2026-03-19 Gil Todd Silva Director Buy +4,000 +$17.11K
2026-03-02 Colin James Deller Chief Executive Officer MIXED +105,021 −$58.98K
2026-03-02 Brent Hinds Chief Financial Officer MIXED +35,884 −$11.66K
2026-02-24 Brent Hinds Chief Financial Officer MIXED +10,684 −$3.68K
2026-02-04 Brent Hinds Chief Financial Officer MIXED +6,416 −$2.22K
2025-10-03 Lou Basenese Director A +24,621 deriv. —
2025-10-03 Gil Todd Silva Director A +26,830 deriv. —
2025-07-03 David M Maley Director A +9,452 deriv. —
2025-07-03 Gil Todd Silva Director A +32,638 deriv. —
2025-07-03 Lou Basenese Director A +34,722 deriv. —
2025-07-03 Catharine de Lacy Director A +32,175 deriv. —
2025-07-03 Judith S Schrecker Director A +46,296 deriv. —
2025-05-27 Lou Basenese Director A +10,923 deriv. —
2025-04-03 Judith S Schrecker Director A +33,735 deriv. —
2025-04-03 David M Maley Director A +23,728 deriv. —
2025-04-03 Catharine de Lacy Director A +24,857 deriv. —
2025-04-03 Gil Todd Silva Director A +19,369 deriv. —
2025-02-25 Brent Hinds Chief Financial Officer MIXED +4,911 −$2.11K
2025-02-24 Brent Hinds Chief Financial Officer MIXED +32,419 −$16.11K
2025-02-24 Colin James Deller Chief Executive Officer MIXED +50,547 −$42.81K
2025-02-21 Brent Hinds Chief Financial Officer MIXED +8,079 −$5.21K
2025-01-06 Catharine de Lacy Director A +13,848 deriv. —
2025-01-06 Judith S Schrecker Director A +18,794 deriv. —
2025-01-06 Gil Todd Silva Director A +10,791 deriv. —
2025-01-06 David M Maley Director A +13,219 deriv. —
2024-10-03 David M Maley Director A +22,634 deriv. —
2024-10-03 Catharine de Lacy Director A +23,712 deriv. —
2024-10-03 Gil Todd Silva Director A +18,477 deriv. —
2024-10-03 Judith S Schrecker Director A +32,181 deriv. —
2024-08-05 Gil Todd Silva Director A +12,364 deriv. —
2024-07-03 David M Maley Director A +22,001 deriv. —
2024-07-03 Judith S Schrecker Director A +29,684 deriv. —
2024-07-03 Catharine de Lacy Director A +21,872 deriv. —
2024-06-26 clirSPV LLC 10%+ Owner Buy +13,400,000 +$12.19M
2024-04-25 David M Maley Director A +14,409 deriv. —
2024-04-10 Brent Hinds Chief Financial Officer A +22,641 deriv. —
2024-04-02 Robert Thurston HOFFMAN Sr Director A +20,408 deriv. —
CLIR — Current Insider Holders
InsiderRole Shares HeldValue
John M Pasquesi 10%+ Owner 1,343,477 $3.09M
Colin James Deller Chief Executive Officer 31,466 $72.37K
Brent Hinds Chief Financial Officer 17,082 $39.29K
Gil Todd Silva Director 5,000 $11.50K
CLIR Insider Trading FAQ
Who are the insiders at CLIR?
4 officers, directors and 10%+ beneficial owners currently report holdings in CLIR via SEC Form 4.
Are CLIR insiders buying or selling?
Across the 50 most recent Form 4 filings for CLIR, 4 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is CLIR insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CLIR filing is dated 2026-10-02.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CLIR quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.